Sony SupportMDR-V150

Article ID : 00277298 / Last Modified : 20/01/2026Print

LinkBuds (WF-L900): No sound during phone calls. I can't hear the other party's voice/they can't hear me

    Follow the steps in this article if you can't hear the person you're calling (using your LinkBuds) or they can't hear you.

    1. Select the issue you're experiencing:
      I can't hear the other party's voice

      Go to step 2.
      The other party can't hear my voice

      Go to step 4.
    2. Check the following on the device connected to your headphones:
      1. Make sure that the headphones are connected via Bluetooth.
        Note: If a Bluetooth connection is not established, refer to the appropriate article:
      2. Check the Speaker settings on the connected device:
        • For Android: While you are talking, tap the Speaker icon, and then select LinkBuds Hands-Free.
        • For iPhones: While you are talking, tap the Audio icon, and then select LinkBuds Hands-Free.
        • For Computers: While you are talking, right-click the Speaker icon at the right side of the computer screen, select Open Sound settings, and then select Headset (LinkBuds Hands-Free) from the Speaker setting.
        Note: The settings menu items may vary depending on the connected device.
      3. Turn up the volume on the connected device.
        Note: Make sure that the speaker is not unmuted on the connected device.
      4. Restart the connected device.
        Note: If the connected device is temporarily unstable, the restart may resolve the issue.
      The issue is resolved
      The issue may have been caused by the Bluetooth device settings or a temporary malfunction.
      The issue is not resolved
      • If the connected device is Android 10 or later, or a Windows computer, go to step 3.
      • For all other devices, go to step 6.

    3. If the connected device is Android 10 or later, or a Windows computer, check the following settings:

      For Android 10 or later:
      1. Open the Settings menu on your smartphone.
      2. Select Connected devices.
      3. To the right of the headphones model name, tap the Settings icon.
      4. Set the Call setting to ON.
      For Windows computers:
      1. On the right side of the computer screen, right-click the Speaker icon.
      2. Select Open Sound settings, and then select Sound Control Panel.
      3. Select the Playback tab to show the device list.
      4. Select the connected headphones, and click Set Default.
      Note: The settings menu items may vary depending on the connected device.
      The issue is resolved
      The issue may have been caused by the Bluetooth device settings.
      The issue is not resolved
      Go to step 6.
    4. Make sure that the headphones are properly attached to your ear. For details on how to wear the headphones, or how to find the best ear fitting supporters and replace them, visit the Help Guide or view the following video:
      The issue is resolved
      The issue may have been caused by the way attaching the headphones.
      The issue is not resolved
      Go to the next troubleshooting step (5)
    5. Check the following on the headphones or connected device:
      1. Set the headphones in the charging case, close the lid, wait for a few seconds, and then remove the headphones again.
      2. If the issue is not resolved, reset (restart) the connected device.
        Note: If the connected device is temporarily unstable, the restart may resolve the issue.
      3. Try speaking louder as the ambient sound may prevent your voice from being heard.
      The issue is resolved
      The issue may have been caused by a temporary malfunction of the headphones or connected device, or ambient sound.
      The issue is not resolved
      Go to to the next troubleshooting step (6).

    6. Reset the headphones.

      Visit the Help Guide or view the video on How to reset the LinkBuds:

      The issue is resolved
      The issue may have been caused by a temporary malfunction of the headphones.
      The issue is not resolved
      Go to the next troubleshooting step (7).

    7. Initialise the headphones.
      Note: Initialisation returns the headphones to the factory settings and all Bluetooth pairing information is deleted.

      Visit the Help Guide or view the video on How to initialise the LinkBuds:

      The issue is resolved
      The issue may have been caused by a temporary malfunction of the headphones.
      The issue is not resolved
      Go to the next troubleshooting step (8).
    8. If you have a different smartphone, Walkman, or another device, try to pair your headphones with one of your other devices through Bluetooth:
      The issue is resolved
      The connected device or application may be the cause. Consult the manufacturer of the device or application.
      The issue is not resolved
      Turn off other wireless devices or move away from those devices as wireless interference can be causing the issue. If the issue is still not resolved, the headphones may be malfunctioning and service may be required.